Answer:
14/25
Step-by-step explanation:
7/10 x 4/5
28/50
14/25
 
        
             
        
        
        
Answer:
   560 ft/min
Step-by-step explanation:
Let r represent Samantha's running rate in feet per minute. Then r-230 is her walking rate. We can use the relation ...
    distance = speed × time
to write an equation for the total distance Samantha went.
   20r + 15(r -230) = 16150
   35r - 3450 = 16150 . . . . eliminate parentheses, collect terms
   35r = 19600 . . . . . . . . . . add 3450
   r = 560 . . . . . . . . . . . . . . divide by the coefficient of r
Samantha ran 560 feet per minute.
 
        
             
        
        
        
Answer:
Option D.
Step-by-step explanation:
The vertex form of an absolute function is
 
where, a is a constant, (h,k) is vertex.
It is given that, vertex of an absolute function is (2,3). So, h=2 and k=3.
 ...(1)
   ...(1)
It crosses the x-axis at (5,0). So put x=5 and y=0 to find the value of a.
 
 
 
Put a=-1 in (1).
 
 
Now, put y=0, to find the equation for this absolute value function when y=0.
 
Therefore, the correct option is D.
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
Hi!
Since an equilateral triangle means that every side is equal, our triangle will have 12 on all sides.
To find the height of an equilateral triangle we use  .
.
 .
.
So the height is  .
.
Now we have to solve 12 *  ÷ 2.
 ÷ 2.

 .
.
Thus, the area of the triangle is  .
. 
Hope this helps!